Dust: means to remove dust from or to spray or cover something with fine powder.
{i} word having two opposing meanings (such as the word "dust" which means "to remove dirt or dust" and also means "to sprinkle" or "scatter dust" or "cleave" which means "to split" and it also means to "to join together")
() auto- + antonym. Coined or reported as autantonym by Joseph T. Shipley, 1960.Shipley, Joseph T. Playing with Words. Englewood Cliffs, N.J.: Prentice-Hall, 1960, p. 74